Liabilities / Assets
44th percentile
Higher debt load relative to assets than 44% of similar nonprofits.
EIN 73-6099978 • 501(c)3 • Tulsa, OK
Profile
Undercroft montessori school provides an authentic montessori education. We are committed to academic excellence, independence in thought and action, critical and collaborative thinking and compassion and respect for self, community and the world.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
44th percentile
Higher debt load relative to assets than 44% of similar nonprofits.
Liabilities / Revenue
46th percentile
Higher debt load relative to revenue than 46% of similar nonprofits.
Net Margin
44th percentile
Higher net margin than 44% of similar nonprofits.
Top Officer Pay
Score unavailable
No filing with officer rows is available for this organization yet.
Asset Growth
Score unavailable
No earlier valid filing was available within the previous three public years.
Revenue Growth
Score unavailable
No earlier valid filing was available within the previous three public years.
Assets
Up$4,574,768
Up $336,995 (+8.0%) from 2018
Liabilities
Up$185,966
Up $3,964 (+2.2%) from 2018
Net Assets
Up$4,388,802
Up $333,031 (+8.2%) from 2018
Revenue
Up$3,066,423
Up $719,121 (+31%) from 2018
Expenses
Up$3,013,665
Up $780,831 (+35%) from 2018
Net Income
Down$52,758
Down $61,710 (-54%) from 2018
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
Undercroft montessori school provides an authentic montessori education. We are committed to academic excellence, independence in thought and action, critical and collaborative thinking and compassion and respect for self, community and the world.
Undercroft provides an authentic Montessori Education.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Land, Buildings, and Equipment, Net | $2,313,062 | $2,263,809 | ▼ $49,253 |
| Investments in Publicly Traded Securities | - | $1,600,364 | - |
| Cash and Non-Interest-Bearing Accounts | $2,066,403 | $646,351 | ▼ $1,420,052 |
| Prepaid Expenses and Deferred Charges | $27,999 | $30,538 | ▲ $2,539 |
| Accounts Receivable | $10,165 | $18,359 | ▲ $8,194 |
| Investments Other Securities | $13,800 | $15,347 | ▲ $1,547 |
| Savings and Temporary Cash Investments | - | $0 | - |
| Other Notes and Loans Receivable, Net | - | $0 | - |
| Pledges and Grants Receivable | - | $0 | - |
| Receivable From Disqualified Prsn | - | $0 | - |
| Receivables From Officers Etc | - | $0 | - |
| Investments Program Related | - | $0 | - |
| Intangible Assets | - | $0 | - |
| Inventories for Sale or Use | - | $0 | - |
| Total Assets | $4,431,429 | $4,574,768 | ▲ $143,339 |
| Other Assets Total | - | $0 | - |
| Liabilities | |||
| Deferred Revenue | $81,042 | $124,454 | ▲ $43,412 |
| Accounts Payable and Accrued Expenses | $75,821 | $61,512 | ▼ $14,309 |
| Total Liabilities | $156,863 | $185,966 | ▲ $29,103 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $4,274,566 | $4,373,455 | ▲ $98,889 |
| Net Assets With Donor Restrictions | - | $15,347 | - |
| Total Net Assets Fund Balance | $4,274,566 | $4,388,802 | ▲ $114,236 |
| Total Liabilities and Net Assets / Fund Balance | $4,431,429 | $4,574,768 | ▲ $143,339 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Buildings | $2,018,231 | $2,045,220 | $4,063,451 |
| Equipment | $175,469 | $527,070 | $702,539 |
| Other Land Buildings | $34,005 | $426,168 | $460,173 |
| Leasehold Improvements | $13,451 | $139,634 | $153,085 |
| Land | $22,653 | - | $22,653 |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2023 | $13,800 | - | ▲ $1,638 | - | $15,347 |
| 2022 | $12,577 | - | ▲ $1,223 | - | $13,800 |
| 2021 | $14,862 | - | ▼ $2,285 | - | $12,577 |
| 2020 | $11,687 | - | ▲ $3,175 | - | $14,862 |
| 2019 | $11,347 | - | ▲ $340 | - | $11,687 |
| Name | Title | Full / Part Time | Base | Total |
|---|---|---|---|---|
| Nancy A Davis | Executive Director | FT | $110,000 | $110,000 |
| Sydney Atchison | Business Offcr | FT | $72,480 | $72,480 |
| Name | Title |
|---|---|
| Robert Thomas | President |
| Allison Meeks | Director |
| Barrie Lamberton | Director |
| Becca Povlock | Director |
| Brett Palmer | Director |
| David Daugherty | Director |
| Erin Rich | Director |
| Evie Houston | Director |
| Heidi Shadid | Director |
| Jackie Griffin | Director |
| Katie Sachse | Director |
| Melissa Moran | Director |
| Scott Ferris | Director |
| Shai Kaiser | Director |
| Tess Merrifield | Director |
| Zuri Jones | Director |
| Dave Sherry | Secretary |
| Vanessa Rogers | Secretary |
| Jogi Makhani | Treasurer |
| Line Item | Amount |
|---|---|
| Salaries, Compensation, and Employee Benefits | $2,295,300 |
| Other Expenses | $704,699 |
| Total Fundraising Expense | $19,203 |
| Professional Fundraising Fees | $13,666 |
| Grants and Similar Amounts Paid | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $1,352,899 | $403,681 | - | $1,756,580 |
| Other Employee Benefits | $98,763 | $111,288 | - | $210,051 |
| Occupancy | $163,472 | $28,659 | - | $192,131 |
| Current Officers, Directors, Trustees, and Key Employees | $140,510 | $41,970 | - | $182,480 |
| Payroll Taxes | $119,875 | $26,314 | - | $146,189 |
| Depreciation Depletion | $107,411 | $20,684 | - | $128,095 |
| Insurance | - | $83,123 | - | $83,123 |
| Office Expenses | $43,108 | $16,612 | - | $59,720 |
| Conferences and Meetings | $24,538 | $933 | - | $25,471 |
| Other Expenses | $17,206 | $2,185 | $5,537 | $17,206 |
| Information Technology | $12,018 | $4,674 | - | $16,692 |
| Fees for Services Professional Fundraising | - | - | $13,666 | $13,666 |
| Fees for Services Accounting | - | $9,852 | - | $9,852 |
| Fees for Services Legal | - | $7,108 | - | $7,108 |
| Fees for Services Other | - | $6,587 | - | $6,587 |
| Advertising | $3,969 | - | - | $3,969 |
| All Other Expenses | - | $3,350 | - | $3,350 |
| Fees for Service Investment Mgmnt Fees | - | $91 | - | $91 |
| Total Functional Expenses | $2,227,351 | $767,111 | $19,203 | $3,013,665 |
| Line Item | Amount |
|---|---|
| Total Expenses per Audited Statements | $3,041,104 |
| Total Expenses per Form 990 | $3,013,665 |
| Expenses per Audited Statements | $3,013,574 |
| Expenses Not Reported on Form 990 | $27,530 |
| Expenses Not Reported on Financial Statements | $91 |
| Line Item | Amount |
|---|---|
| Fundraising Gross Income | $74,965 |
| Fundraising Direct Expenses | $27,530 |
| Professional Fundraising Fees | $13,666 |
| Event | Gross Receipts | Gross Revenue | Direct Expenses | Net Income |
|---|---|---|---|---|
| fUNDERRaiser | $70,814 | $70,814 | $27,530 | $43,284 |
| Total Events | $70,814 | $70,814 | $27,530 | $43,284 |
| Line Item | Beginning | End | Change |
|---|---|---|---|
| Receivables from Disqualified Persons | - | $0 | - |
| Receivables from Officers, Directors, Trustees, and Key Employees | - | $0 | - |
“All parents paying tuition each year are shareholders.”
“The board president and treasurer review the form 990 prior to signature of the executive director.”
“Any possible conflict of interest is reviewed at least annually by the board of directors and noted in the minutes at the monthly meetings. An employee who has a concern regarding an action concerning UMS's governance, finances, or compliance with all applicable laws and regulations should raise the concern with a supervisor or the head of the school. If for any reason the employee does not believe these channels of communication are adequate, the concern should be reported immediately to either the board president or the finance committee chair. Anonymous reports will be accepted, and all reports will be handled on a confidential basis. Mark envelope "to be opened by addressee only, personal and confidential" the board president or finance committee chair will coordinate the investigation and UMS will take appropriate action as it deems justifiable by the circumstances. The current contact information for the board president and finance committee chair is posted in the mail room next to the FMLA and USSERA posters.”
“The compensation of the top management officials and the head of school was determined based on the research by a specially designated search committee and regional statistics for each position.”
“The compensation of the top management officials and the head of school was determined based on the research by a specially designated search committee and regional statistics for each position.”
“All documents are made available to the public upon request to the head of the school.”
“The Organization has adopted the provisions of FASB Accounting Standards Codification Topic ASC 740-10-25 Accounting for Uncertainty in Income Taxes. The implementation of this standard had no impact on the financial statements. As of June 30, 2024, the unrecognized tax benefit accrual was zero.”
“Direct Fundraising Expenses $27530”
“Direct Fundraising Expenses $27530”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | false |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 75821 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 61512 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 10165 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 18359 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | false |
| IRS990/ActivityOrMissionDesc | 0 | Undercroft provides an authentic Montessori Education. |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 3969 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 3969 |
| IRS990/AllOtherContributionsAmt | 0 | 100003 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 3350 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 3350 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | true |
| IRS990/AuditCommitteeInd | 0 | true |
| IRS990/BackupWthldComplianceInd | 0 | false |
| IRS990/BenefitsToMembersGrp/TotalAmt | 0 | 0 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | Rhiannon Harris |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 9186622890 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 3745 S Hudson Ave |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | Tulsa |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | OK |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 741355604 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | false |
| IRS990/BusinessRlnWithFamMemInd | 0 | false |
| IRS990/BusinessRlnWithOrgMemInd | 0 | false |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 2066403 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 646351 |
| IRS990/ChangeToOrgDocumentsInd | 0 | false |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | false |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 41970 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 140510 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 182480 |
| IRS990/CompDisqualPersonsGrp/TotalAmt | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | false |
| IRS990/CompensationProcessCEOInd | 0 | true |
| IRS990/CompensationProcessOtherInd | 0 | true |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 933 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 24538 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 25471 |
| IRS990/ConflictOfInterestPolicyInd | 0 | true |
| IRS990/ConservationEasementsInd | 0 | false |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | false |
| IRS990/CreditCounselingInd | 0 | false |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 100003 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 1335 |
| IRS990/CYOtherExpensesAmt | 0 | 704699 |
| IRS990/CYOtherRevenueAmt | 0 | 47435 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 2917650 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 52758 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 2295300 |
| IRS990/CYTotalExpensesAmt | 0 | 3013665 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 19203 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 13666 |
| IRS990/CYTotalRevenueAmt | 0 | 3066423 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | false |
| IRS990/DeductibleArtContributionInd | 0 | false |
| IRS990/DeductibleNonCashContriInd | 0 | false |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 81042 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 124454 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | false |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 20684 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 107411 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 128095 |
| IRS990/Desc | 0 | The operation of a Montessori Day School for ages 3 through 14 which services approximately 200 students from grades Pre-K through eighth grade. Educating children by developing independence, intrinsic motivation for learning, personal, and social responsibility, confidence and competence, and academic preparation, in order to maximize the potential of each student. |
| IRS990/DescribedInSection501c3Ind | 0 | true |
| IRS990/DisregardedEntityInd | 0 | false |
| IRS990/DocumentRetentionPolicyInd | 0 | true |
| IRS990/DonorAdvisedFundInd | 0 | false |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 15347 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | true |
| IRS990/ElectionOfBoardMembersInd | 0 | true |
| IRS990/EmployeeCnt | 0 | 71 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | true |
| IRS990/EngagedInExcessBenefitTransInd | 0 | false |
| IRS990/ExpenseAmt | 0 | 2227351 |
| IRS990/FamilyOrBusinessRlnInd | 0 | false |
| IRS990/FederalGrantAuditRequiredInd | 0 | false |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 9852 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 9852 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 7108 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 7108 |
| IRS990/FeesForServicesLobbyingGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 0 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 6587 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 6587 |
| IRS990/FeesForServicesProfFundraising/FundraisingAmt | 0 | 13666 |
| IRS990/FeesForServicesProfFundraising/TotalAmt | 0 | 13666 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 91 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 91 |
| IRS990/ForeignActivitiesInd | 0 | false |
| IRS990/ForeignFinancialAccountInd | 0 | false |
| IRS990/ForeignGrantsGrp/TotalAmt | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | false |
| IRS990/Form1098CFiledInd | 0 | false |
| IRS990/Form8282FiledCnt | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | false |
| IRS990/Form8899Filedind | 0 | false |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 4 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 5 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 6 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 7 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 8 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 9 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 10 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 11 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 12 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 13 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 14 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 15 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 16 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 17 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 18 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 19 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 20 | 0.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 19 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 20 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
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| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 10 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 11 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 12 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 13 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 14 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 15 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 16 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 17 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 18 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | Nancy A Davis |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | Sydney Atchison |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | David Daugherty |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | Scott Ferris |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | Jackie Griffin |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | Tess Merrifield |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | Evie Houston |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | Zuri Jones |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | Shai Kaiser |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | Barrie Lamberton |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | Jogi Makhani |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | Allison Meeks |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | Melissa Moran |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | Brett Palmer |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | Becca Povlock |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | Vanessa Rogers |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | Erin Rich |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | Katie Sachse |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | Heidi Shadid |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 19 | Dave Sherry |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 20 | Robert Thomas |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 110000 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 72480 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | Executive Dir. |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | Business Offcr |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | Treasurer |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | Secretary |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 19 | Secretary |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 20 | President |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | true |
| IRS990/FormationYr | 0 | 1964 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | false |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | true |
| IRS990/FundraisingActivitiesInd | 0 | true |
| IRS990/FundraisingDirectExpensesAmt | 0 | 27530 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 74965 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 117 |
| IRS990/GamingActivitiesInd | 0 | false |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 19 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 0 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 0 |
| IRS990/GrantsToIndividualsInd | 0 | false |
| IRS990/GrantsToOrganizationsInd | 0 | false |
| IRS990/GrantToRelatedPersonInd | 0 | false |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 1107 |
| IRS990/GrossReceiptsAmt | 0 | 3094943 |
| IRS990/GroupReturnForAffiliatesInd | 0 | false |
| IRS990/IncludeFIN48FootnoteInd | 0 | true |
| IRS990/IncmFromInvestBondProceedsGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | true |
| IRS990/IndependentVotingMemberCnt | 0 | 19 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/IndoorTanningServicesInd | 0 | false |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 4674 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 12018 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 16692 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 83123 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 83123 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 0 |
| IRS990/InterestGrp/TotalAmt | 0 | 0 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 1218 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 1218 |
| IRS990/InvestmentInJointVentureInd | 0 | false |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 13800 |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 15347 |
| IRS990/InvestmentsProgramRelatedGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 1600364 |
| IRS990/IRPDocumentCnt | 0 | 0 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 3138092 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 2313062 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 2263809 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 5401901 |
| IRS990/LegalDomicileStateCd | 0 | OK |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 990 |
| IRS990/LoanOutstandingInd | 0 | false |
| IRS990/LobbyingActivitiesInd | 0 | false |
| IRS990/LocalChaptersInd | 0 | false |
| IRS990/MaterialDiversionOrMisuseInd | 0 | false |
| IRS990/MembersOrStockholdersInd | 0 | true |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | false |
| IRS990/MinutesOfGoverningBodyInd | 0 | true |
| IRS990/MissionDesc | 0 | Undercroft Montessori School provides an authentic Montessori education. We are committed to academic excellence, independence in thought and action, critical collaborative thinking, compassion and respect for self, community, and the world. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | false |
| IRS990/MoreThan5000KToOrgInd | 0 | false |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 4274566 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 4388802 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 117 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 117 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | 47435 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | 47435 |
| IRS990/NetIncomeFromGamingGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 667 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 4274566 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 4373455 |
| IRS990/NondeductibleContributionsInd | 0 | false |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 28659 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 163472 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 192131 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 16612 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 43108 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 59720 |
| IRS990/OfficerMailingAddressInd | 0 | false |
| IRS990/OperateHospitalInd | 0 | false |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 111288 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 98763 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 210051 |
| IRS990/OtherExpensesGrp/Desc | 0 | Teaching Materials |
| IRS990/OtherExpensesGrp/Desc | 1 | Middle School Business |
| IRS990/OtherExpensesGrp/Desc | 2 | Other Supplies and Materials |
| IRS990/OtherExpensesGrp/Desc | 3 | Dues and Subscriptions |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 5537 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 2185 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 85877 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 47144 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 10561 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 17206 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 85877 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 47144 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 18283 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 17206 |
| IRS990/OtherRevenueTotalAmt | 0 | 0 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 403681 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 1352899 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 1756580 |
| IRS990/OthNotesLoansReceivableNetGrp/EOYAmt | 0 | 0 |
| IRS990/PartialLiquidationInd | 0 | false |
| IRS990/PaymentsToAffiliatesGrp/TotalAmt | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | false |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 26314 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 119875 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 146189 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 0 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | false |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 27999 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 30538 |
| IRS990/PrincipalOfficerNm | 0 | Nancy A Davis |
| IRS990/PriorPeriodAdjustmentsAmt | 0 | 60811 |
| IRS990/ProfessionalFundraisingInd | 0 | false |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 611600 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 611600 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 611600 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 3 | 611600 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | Tuition and Fees |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | Middle School Business |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | Tuition Interest |
| IRS990/ProgramServiceRevenueGrp/Desc | 3 | Other School Income |
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